WRF simulation results of a snowfall event in April 2023 in the Liupan Mountain region of Ningxia, China, along with ground-based micro rain radar data.

Although the seeder-feeder mechanism plays a key role in efficient orographic snowfall, a dry layer often exists between the two cloud layers. The occurrence patterns of this dry layer and its impact on the snowfall process remain poorly understood, particularly in semi-arid regions. This study analyzes a spring snowfall event over the Liupan Mountain region in the semi-arid area of Northwest China using the WRF model coupled with the P3 and Thompson cloud microphysics schemes, supplemented by ground-based observations including micro rain radar. The aim is to investigate the influence of the intervening dry layer on the seeder-feeder mechanism in mid-latitude semi-arid regions. This dataset contains Micro Rain Radar (MRR) data and WRF simulation data from the Liupan Mountain area of China in 2023. The files 0401-corrected-processed, 0402-corrected-processed, 0403-corrected-processed, and 0404-corrected-processed correspond to the MRR data for April 1 to 4, respectively, used in this study. The WRF output simulation files are compressed packages named with "wrfout" as the base name. The number preceding "wrfout" indicates the simulation scheme, and the following numbers represent the domain and time (UTC). For example, 8wrfout_d03_2023-04-01_00_00_00.tar is the simulation file for Scheme 8, domain d03, at 00:00 UTC on April 1, 2023. The China hourly surface data (Tianqing) table contains observational data from the surface stations (Liupan Mountain Station, Dawan Station (Subao Village), and Longde Station), and is used to calculate surface snowfall accumulation and snowfall intensity.Data associated with a manuscript submitted to JGR-A journal.尽管播撒-供给（seeder-feeder）机制在高效地形降雪过程中发挥关键作用，但双层云之间往往存在干层。目前学界对该干层的发生规律及其对降雪过程的影响仍缺乏深入认知，在半干旱区域这一问题尤为显著。本研究针对中国西北半干旱区六盘山地区2023年春季一次降雪事件，采用耦合P3与Thompson云微物理方案的WRF模型，并辅以包括微雨雷达在内的地面观测数据展开分析，旨在探究中纬度半干旱区域内夹层干层对播撒-供给机制的影响。 本数据集包含2023年中国六盘山地区的微雨雷达（Micro Rain Radar, MRR）观测数据与WRF模拟数据。文件0401-corrected-processed、0402-corrected-processed、0403-corrected-processed与0404-corrected-processed分别对应本研究使用的4月1日至4月4日的MRR观测数据。WRF输出模拟文件为以"wrfout"为基础文件名的压缩包，"wrfout"前的数字代表模拟方案，其后的内容表示模拟区域与协调世界时（UTC）时间。例如，8wrfout_d03_2023-04-01_00_00_00.tar即为方案8、模拟区域d03在2023年4月1日00:00（UTC）的模拟文件。中国逐时地面观测（天擎）数据集包含来自地面站点（六盘山站、大湾站（苏堡村）与隆德站）的观测数据，可用于计算地面降雪累积量与降雪强度。本数据集关联一篇已投稿至JGR-A期刊的研究论文。